EP1632013B1 - Drive, in particular actuating and variable-speed drive for flaps and fittings - Google Patents

Drive, in particular actuating and variable-speed drive for flaps and fittings Download PDF

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Publication number
EP1632013B1
EP1632013B1 EP04725622A EP04725622A EP1632013B1 EP 1632013 B1 EP1632013 B1 EP 1632013B1 EP 04725622 A EP04725622 A EP 04725622A EP 04725622 A EP04725622 A EP 04725622A EP 1632013 B1 EP1632013 B1 EP 1632013B1
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EP
European Patent Office
Prior art keywords
explosion
shaft
casing
drive
drive according
Prior art date
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Expired - Lifetime
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EP04725622A
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German (de)
French (fr)
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EP1632013A1 (en
Inventor
Alexander Schischek
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SCHISCHEK PRODUKTION TECHNISCHER GERAETE GmbH
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Schischek Produktion Technischer Gerate GmbH
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/28—Manual switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof

Definitions

  • the invention relates to a drive, in particular an actuating and control drive, for flaps and valves, which may be located in a potentially explosive environment, with control electronics and functional components, such as gear and handling equipment.
  • the invention in contrast, deals with the explosion protection of actuators and control drives and also requires a much broader field of application than in the case described above.
  • Explosion protection means that the drive, its controls, its auxiliary components, such as gearboxes and handling equipment, as well as switches and the like, operate in a potentially explosive atmosphere.
  • Such an environment is characterized by the presence of an explosive medium such as gases, mists, vapors and dusts, but also liquids.
  • an explosive medium such as gases, mists, vapors and dusts, but also liquids.
  • An explosion could be caused by electrically or mechanically generated sparks, by static electricity, by open flames, hot surfaces, lightning or chemical ignition sources.
  • any internal explosion would inevitably lead to the ignition of the explosive medium in the environment and generate an explosion there that causes severe damage or destruction.
  • the strength of the aforementioned assemblies against an external explosion that is, the explosion of the medium itself, without internal explosion, however, plays no role in the present context.
  • the housing is formed of two chambers, wherein the explosion-initiating modules, namely at least the motor and control electronics are arranged in a first explosion-proof housing part, whereas the unprotected assemblies in the second, not explosion-proof housing part, which is flanged to the first , are housed.
  • the protected housing part On the protected housing part a likewise protected control unit is mounted, which allows the control of the motor.
  • an engine for a mining machine which is operated in a hazardous environment and a protected chamber, the engine and control gear, as well as an unprotected chamber containing the electrical connections.
  • the object of the invention has been found to propose a drive, in particular control or variable speed drive, which is smaller and cheaper than the known devices, thereby has a broader field of application and allows by the peculiarity of its structure a simple removal of the actuating shafts from the housing and by merely reversing the housing allows a change in the driving direction of rotation of these actuation shafts.
  • this outer housing which preferably consists of a statically non-chargeable plastic or metal, such as stainless steel or aluminum, not only an attractive housing is feasible, there are in this also the mounting options of the drive on front and back given to a left - Or to allow a clockwise rotation of the drive.
  • this outer housing is formed of two half-shells, from the opposite side surfaces of the drive shaft is led out, as well as the shaft for the manual adjustment of the engine in an emergency. One of the half shells carries openings through which the operating unit can be actuated on the first housing.
  • Flaps and valves are to be understood in the context of the invention, air dampers, fire dampers, valves, throttle valves, mixers and ball valves.
  • auxiliary components which have to be protected by intrinsically safe circuits in order not to be sources of ignition, thermostats, hygrostats, buttons, switches and filter monitoring devices are to be mentioned.
  • building equipment As application areas of the invention, building equipment, industrial plants, in particular for the chemical and pharmaceutical industry, sewage treatment plants, gas production, painting and drying plants and onshore and offshore technologies are particularly preferred.
  • the invention can now be advantageously designed so that there is a spring return in the second, not explosion-proof housing next to the transmission. Above all, this can be used to implement safety functions in which, in the event of a power supply failure, air dampers or valves are mechanically returned to their initial position.
  • the motor has a hollow collar in which the motor shaft is mounted with its one bearing, wherein the collar with the one housing part of the first housing explosionproof and explosion protection of the motor shaft is ensured by the shaft - hub - geometry.
  • the latter means that the gap width and the gap length between the shaft and the surrounding hub are in proportion to the diameter of the shaft, which is set at a bandwidth by standard provisions for explosion safety.
  • FIG. 1 is an outer housing made of plastic in a side view, cut, shown, which consists of half-shells 1a and 1b.
  • an explosion-proof housing 2 which has housing parts 2a and 2b.
  • This explosion-proof housing 2 is flanged to a housing 3, which is not designed explosion-proof.
  • a transmission 3a which is connected to a schematically indicated shaft 4 with the motor in the housing 2 in connection.
  • the output from the housing 3, namely the drive shaft, is denoted by 5.
  • This shaft is guided on both sides to the housing surface of the outer housing 1.
  • a spring return 6 is flanged, which in case of power failure, the drive shaft 5 in their starting position turns back.
  • the shaft of the manual adjustment is referred to, which is led out of the transmission also up to both side surfaces of the outer housing 1 and offers a possibility of manual adjustment of the transmission.
  • a potting compound 8 is indicated, in which the operating unit 9 is embedded with their current-carrying parts.
  • 10 denotes the screw connection for the cable connection.
  • FIG. 2 represents a view in the direction of arrow A and shows the screw 10 for cable connections and the control unit 9, which is shown as a detail at arrow 11.
  • the set function is finely adjustable with the 10-position switch 11c in stages. The encapsulation of these intrinsically safe components in the potting compound 8 ensures explosion safety in accordance with the standard.
  • FIG. 3 is a plan view of the housing part 1b with the cover 2b removed. It can be seen in the housing, shown schematically, a motor 12, a printed circuit board 13, also shown schematically, on the underside of the electronic components and the conductor tracks are arranged. At 14, an auxiliary switch for End einssignalmaschine is designated. Incidentally, the same components with the same reference numerals as in FIG. 1 designated.
  • FIG. 4 is the explosion-proof housing 2 shown with its housing parts 2a and 2b in the assembled state, wherein the contact surfaces are sealed with a potting compound 15.
  • FIGS. 5 and 6 Two possible variants of the explosion-proof arrangement of the motor in the housing part 2a are shown.
  • the motor 12 is connected via a coupling 16 with a shaft 17.
  • This coupling consists of a hexagonal end of the motor shaft, which in a corresponding hexagonal opening of the shaft 17 engages.
  • the shaft 17 is mounted in two bearings 18 which are pressed into the housing part 2a.
  • FIG. 6 illustrated second variant shows the motor 12 which is arranged on the housing part 2 and has a collar 19 which is pressed into the housing part 2a and in which the motor shaft 4 is mounted in two bearings 20 and 21.
  • the bearing 21 is pressed or screwed into the collar 19.
  • the bearing 20 is the usual, already existing in the engine bearing for the shaft 4.
  • This second variant is preferred because of their simpler and therefore cheaper construction compared to the variant FIG. 5 ,

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Manipulator (AREA)

Abstract

The invention relates to a drive, in particular a variable-speed and actuating drive for flaps and fittings arranged in an explosive environment. Explosion provoking components, in particular a motor (12) and actuating electronics (13) and possibly an operating unit (9) are arranged in the first explosion-protected casing (2) which is connected to a second casing (3) which is non-protected against explosion and comprises functional elements (3a, 6) which do not require protection, such as a transmission and manipulators. Said two casings are enclosed in an external casing (1) through whose lateral face the drive exits.

Description

Die Erfindung betrifft einen Antrieb, insbesondere einen Stell- und Regelantrieb, für Klappen und Armaturen, die sich in einer explosionsgefährdeten Umgebung befinden können, mit einer Steuerelektronik und mit Funktionskomponenten, wie Getriebe und Handhabungseinrichtungen.The invention relates to a drive, in particular an actuating and control drive, for flaps and valves, which may be located in a potentially explosive environment, with control electronics and functional components, such as gear and handling equipment.

Antriebe für Klappen und Armaturen und dergleichen sind in großer Zahl bekannt. Als Beispiel sei die EP 1215060 A2 genannt. In dieser Druckschrift ist ein Stellantrieb für Klappen von Klimaanlagen beschrieben, bei welcher der Stellantrieb mit der Klappe fest verbunden und mit dieser schwenkbar ist. Die Leitungen sind zwecks eines ungehinderten Schwenkbetriebes durch die Stellwelle nach außen geführt. Bei dieser bekannten Anordnung ist in der Stellwelle außerdem ein Stecker für die Leitungen angeordnet, um die Montage zu erleichtern.Drives for valves and fittings and the like are known in large numbers. As an example, be the EP 1215060 A2 called. In this document, an actuator for flaps of air conditioning systems is described in which the actuator is firmly connected to the flap and pivotable with this. The cables are led outwards for the purpose of unimpeded pivoting operation through the control shaft. In this known arrangement, a plug for the lines is also arranged in the control shaft to facilitate assembly.

Die Erfindung befasst sich demgegenüber mit dem Explosionsschutz von Stell- und Regelantrieben und erfordert außerdem ein wesentlich breiteres Anwendungsgebiet als im vorbeschriebenen Fall.The invention, in contrast, deals with the explosion protection of actuators and control drives and also requires a much broader field of application than in the case described above.

Explosionsschutz bedeutet, dass der Antrieb, seine Steuerung, seine Hilfskomponenten, wie Getriebe und Handhabungseinrichtungen, sowie Schalter und dergleichen, in einer explosionsgefährdeten Umgebung arbeiten. Eine solche Umgebung ist durch das Vorhandensein eines explosionsfähigen Mediums wie Gase, Nebel, Dämpfe und Stäube aber auch Flüssigkeiten gekennzeichnet. Beim Explosionsschutz kommt es darauf an, dass die vorgenannten Baugruppen keine Zündquellen darstellen. Eine Explosion könnte entstehen durch elektrisch oder mechanisch erzeugte Funken, durch statische Elektrizität, durch offene Flammen, heiße Oberflächen, Blitz oder chemische Zündquellen. Beispielsweise würde eine etwaige Innenexplosion unweigerlich zur Zündung des explosionsfähigen Mediums in der Umgebung führen und dort eine Explosion erzeugen, die starke Schäden oder Zerstörungen verursacht. Die Festigkeit der vorgenannten Baugruppen gegen eine Außenexplosion, das heißt die Explosion des Mediums an sich, ohne Innenexplosion, spielt hingegen im vorliegenden Zusammenhang keine Rolle.Explosion protection means that the drive, its controls, its auxiliary components, such as gearboxes and handling equipment, as well as switches and the like, operate in a potentially explosive atmosphere. Such an environment is characterized by the presence of an explosive medium such as gases, mists, vapors and dusts, but also liquids. For explosion protection, it is important that the aforementioned assemblies are not sources of ignition. An explosion could be caused by electrically or mechanically generated sparks, by static electricity, by open flames, hot surfaces, lightning or chemical ignition sources. For example, any internal explosion would inevitably lead to the ignition of the explosive medium in the environment and generate an explosion there that causes severe damage or destruction. The strength of the aforementioned assemblies against an external explosion, that is, the explosion of the medium itself, without internal explosion, however, plays no role in the present context.

Bisher war es bei explosionsgeschützten Geräten üblich, dass alle Baugruppen, die für das Gerät erforderlich sind, nämlich Antrieb, Steuerelektronik, Hilfskomponenten und dergleichen, einschließlich Getriebe, Federrücklauf und Handhabungseinrichtungen, insgesamt in einem druckfesten Gehäuse gekapselt sind. Diese auf dem Markt befindlichen Geräte sind aufgrund dieser Gegebenheiten groß und damit teuer.So far, it has been common in explosion-proof equipment that all assemblies that are required for the device, namely drive, control electronics, auxiliary components and the like, including gearbox, spring return and handling equipment, are encapsulated in a flameproof enclosure. These devices on the market are large and therefore expensive due to these circumstances.

Aus der US 5 073 736 welche als nächstliegender Stand der Technik betrachtet wird ist ein Pumpenmotor bekannt, der in einer explosionsgefährdeten Umgebung arbeitet und entsprechend geschützt ist. Dementsprechend ist das Gehäuse aus 2 Kammern gebildet, wobei die explosionsauslösenden Baugruppen, nämlich zumindest Motor und Steuerelektronik, in einem ersten, explosionsgeschützten Gehäuseteil angeordnet sind, wohingegen die nicht zu schützenden Baugruppen, in dem zweiten, nicht explosionsgeschützten Gehäuseteil, das an dem ersten angeflanscht ist, untergebracht sind. An dem geschützten Gehäuseteil ist eine ebenfalls geschützte Bedieneinheit angebracht, welche die Ansteuerung des Motors ermöglicht.From the US 5 073 736 which is considered as the closest prior art, a pump motor is known which operates in a hazardous environment and is protected accordingly. Accordingly, the housing is formed of two chambers, wherein the explosion-initiating modules, namely at least the motor and control electronics are arranged in a first explosion-proof housing part, whereas the unprotected assemblies in the second, not explosion-proof housing part, which is flanged to the first , are housed. On the protected housing part a likewise protected control unit is mounted, which allows the control of the motor.

Aus der US 3 134 056 ist ferner ein ähnliches, explosionsgeschütztes Gerät bekannt, das zur Steuerung einer Pumpe dient. Der geschützte Teil enthält ein magnetisches Betätigungselement und elektrische Zuleitungen für den Magneten, wohingegen der zweite, nicht geschützte Teil die Pumpe enthält.From the US 3,134,056 Furthermore, a similar, explosion-proof device is known, which serves to control a pump. The protected part contains a magnetic actuator and electrical leads for the magnet, whereas the second, non-protected part contains the pump.

Aus der GB 1 035 712 ist ferner ein Motor für eine Bergbaumaschine bekannt, der in einer explosionsgefährdeten Umgebung betrieben wird und eine geschützte Kammer, die Motor und Steuergetriebe, sowie eine ungeschützte Kammer aufweist, die die elektrischen Anschlüsse enthält.From the GB 1 035 712 Furthermore, an engine for a mining machine is known, which is operated in a hazardous environment and a protected chamber, the engine and control gear, as well as an unprotected chamber containing the electrical connections.

Die Erfindung hat sich als Aufgabe gestellt, einen Antrieb, insbesondere Stell- oder Regelantrieb, vorzuschlagen, der kleiner und billiger als die bekannten Geräte ist, dadurch ein breiteres Anwendungsgebiet hat und der durch die Besonderheit seines Aufbaus eine einfache Herausführung der Betätigungswellen aus dem Gehäuse zuläßt und durch bloßes Umdrehen des Gehäuses eine Änderung der Antriebsdrehrichtung dieser Betätigungswellen erlaubt.The object of the invention has been found to propose a drive, in particular control or variable speed drive, which is smaller and cheaper than the known devices, thereby has a broader field of application and allows by the peculiarity of its structure a simple removal of the actuating shafts from the housing and by merely reversing the housing allows a change in the driving direction of rotation of these actuation shafts.

Die Lösung dieser Aufgabe ist im Anspruch 1 gekennzeichnet. Bei der Erfindung geht es somit darum, nur noch jene Baugruppen des Antriebes, seiner Steuerung und seiner Hilfskomponenten in ein explosionsgeschütztes Gehäuse einzubauen, die Zündquellen darstellen können, wohin gegen alle übrigen Baugruppen, bei denen diese Gefahr nicht besteht, in einem normalen, das heißt, nicht explosionsgeschützten Gehäuse, das auch teilweise offen sein kann, angeordnet werden. Bei dieser Lösung muss von vornherein genau geprüft werden, welche Baugruppen einen Explosionsschutz erfordern und welche nicht, um dann eine entsprechende Auswahl für die beiden Gehäuse zu treffenThe solution to this problem is characterized in claim 1. In the invention, it is therefore important to install only those assemblies of the drive, its control and its auxiliary components in an explosion-proof housing, which can represent sources of ignition, whereas against all other modules in which this risk does not exist in a normal, that is , not explosion-proof housing, which may also be partially open, are arranged. This solution must be checked from the outset, which modules require explosion protection and which not, and then make an appropriate choice for the two housings

Die Erfindung ist nun dahingehend ausgebildet, dass sich die beiden Gehäuse in einem nichtexplosionsgeschützten Aussengehäuse befinden, das Öffnungen für die Antriebswelle, die Bedieneinheit, die Handverstellung, die Kabelanschlüsse und die Befestigungsmittel für das Aussengehäuse selbst aufweist. Mit diesem Aussengehäuse, das vorzugsweise aus einem statisch nicht aufladbaren Kunststoff oder aus Metall, wie z.B. Edelstahl oder Aluminium besteht, ist nicht nur ein ansprechendes Gehäuse realisierbar, es sind in diesem auch die Befestigungsmöglichkeiten des Antriebs auf Vor- und Rückseite gegeben, um einen Links- oder einen Rechtslauf des Antriebs zu ermöglichen. Zweckmäßigerweise ist dieses Aussengehäuse aus zwei Halbschalen gebildet, aus deren gegenüberliegenden Seitenflächen die Antriebswelle herausgeführt ist, ebenso wie die Welle für die Handverstellung des Motors im Notfall. Eine der Halbschalen trägt Öffnungen, durch welche die Bedieneinheit am ersten Gehäuse betätigbar ist.The invention is now designed such that the two housings are located in a non-explosion-proof outer housing having openings for the drive shaft, the control unit, the manual adjustment, the cable connections and the fastening means for the outer housing itself. With this outer housing, which preferably consists of a statically non-chargeable plastic or metal, such as stainless steel or aluminum, not only an attractive housing is feasible, there are in this also the mounting options of the drive on front and back given to a left - Or to allow a clockwise rotation of the drive. Conveniently, this outer housing is formed of two half-shells, from the opposite side surfaces of the drive shaft is led out, as well as the shaft for the manual adjustment of the engine in an emergency. One of the half shells carries openings through which the operating unit can be actuated on the first housing.

Unter Klappen und Armaturen sollen im Zusammenhang mit der Erfindung Luftklappen, Brandschutzklappen, Ventile, Drosselklappen, Mischer und Kugelhähne verstanden werden. Als Hilfskomponenten, welche über eigensichere Stromkreise zu schützen sind, um keine Zündquellen darzustellen, sind Thermostate, Hygrostate, Taster, Schalter und Filterüberwachungsgeräte zu nennen.Flaps and valves are to be understood in the context of the invention, air dampers, fire dampers, valves, throttle valves, mixers and ball valves. As auxiliary components, which have to be protected by intrinsically safe circuits in order not to be sources of ignition, thermostats, hygrostats, buttons, switches and filter monitoring devices are to be mentioned.

Als Anwendungsgebiete der Erfindung sind Gebäudeausrüstung, Industrieanlagen, insbesondere für die Chemie und Pharmazie, Kläranlagen, Gasförderung, Lackier- und Trocknungsanlagen sowie On- und Offshore - Technologien besonders bevorzugt.As application areas of the invention, building equipment, industrial plants, in particular for the chemical and pharmaceutical industry, sewage treatment plants, gas production, painting and drying plants and onshore and offshore technologies are particularly preferred.

Die Erfindung kann nun vorteilhaft dahingehend ausgebildet sein, daß sich in dem zweiten, nicht explosionsgeschützten Gehäuse neben dem Getriebe ein Federrücklauf befindet. Mit diesem lassen sich vor allem Sicherheitsfunktionen verwirklichen, in dem nämlich bei Ausfall der Stromversorgung Luftklappen oder Armaturen mechanisch in ihre Ausgangslage zurückgeführt werden.The invention can now be advantageously designed so that there is a spring return in the second, not explosion-proof housing next to the transmission. Above all, this can be used to implement safety functions in which, in the event of a power supply failure, air dampers or valves are mechanically returned to their initial position.

Für die Ausbildung des Motors im ersten Gehäuse sind zwei Varianten vorteilhaft, von denen die bevorzugte derart ausgebildet ist, dass der Motor einen hohlen Bund aufweist, in dem die Motorwelle mit ihrem einen Lager gelagert ist, wobei der Bund mit dem einen Gehäuseteil des ersten Gehäuses explosionssicher zusammengefügt ist und der Explosionsschutz der Motorwelle durch die Wellen - Naben - Geometrie gewährleistet ist. Letzteres bedeutet, dass die Spaltbreite und die Spaltlänge zwischen der Welle und der sie umgebenden Nabe in einem Verhältnis zu dem Durchmesser der Welle stehen, das mit einer Bandbreite durch Norm - Bestimmungen zur Explosionssicherheit festgelegt ist.For the formation of the engine in the first housing two variants are advantageous, of which the preferred is such that the motor has a hollow collar in which the motor shaft is mounted with its one bearing, wherein the collar with the one housing part of the first housing explosionproof and explosion protection of the motor shaft is ensured by the shaft - hub - geometry. The latter means that the gap width and the gap length between the shaft and the surrounding hub are in proportion to the diameter of the shaft, which is set at a bandwidth by standard provisions for explosion safety.

Im folgenden soll die Erfindung anhand der Zeichnung noch näher erläutert werden.In the following the invention will be explained in more detail with reference to the drawing.

Es zeigen:

  • Figur 1: eine Seitenansicht, in einem Schnitt entlang der Linie I - I der Figur 2
  • Figur 2: eine Ansicht des Aussengehäuses in Richtung A in Figur 1
  • Figur 3: eine Ansicht des ersten explosionsgeschützten Gehäuses von oben bei abgenommenem Deckel
  • Figur 4: eine perspektivische Ansicht des ersten, explosionsgeschützten Gehäuses in geschlossenem Zustand
  • Figur 5: eine erste Variante des Motors in einem Teilschnitt
  • Figur 6: eine zweite Variante des Motors in einem Schnitt.
Show it:
  • FIG. 1 a side view, in a section along the line I - I of FIG. 2
  • FIG. 2 : a view of the outer housing in the direction of A in FIG. 1
  • FIG. 3 : A view of the first explosion-proof housing from above with the cover removed
  • FIG. 4 : A perspective view of the first, explosion-proof housing in the closed state
  • FIG. 5 : a first variant of the engine in a partial section
  • FIG. 6 : a second variant of the engine in one cut.

In Figur 1 ist ein Aussengehäuse aus Kunststoff in einer Seitenansicht, geschnitten, dargestellt, welches aus Halbschalen 1a und 1b besteht. In dem Aussengehäuse sieht man, ungeschnitten, ein explosionsgeschütztes Gehäuse 2, welches Gehäuseteile 2a und 2b aufweist. Dieses explosionsgeschützte Gehäuse 2 ist angeflanscht an ein Gehäuse 3, welches nicht explosionsgeschützt ausgeführt ist. In diesem Gehäuse 3 befindet sich ein Getriebe 3a, welches mit einer schematisch angedeuteten Welle 4 mit dem Motor in dem Gehäuse 2 in Verbindung steht. Der Abtrieb aus dem Gehäuse 3, nämlich die Antriebswelle, ist mit 5 bezeichnet. Diese Welle ist beidseits bis an die Gehäuseoberfläche des Aussengehäuses 1 geführt. An dem Gehäuse 3 ist, ebenfalls nur schematisch dargestellt, ein Federrücklauf 6 angeflanscht, welcher bei Stromausfall die Antriebswelle 5 in ihre Ausgangsstellung zurückdreht. Mit 7 ist die Welle der Handverstellung bezeichnet, welche aus dem Getriebe heraus ebenfalls bis an beide Seitenflächen des Aussengehäuses 1 herausgeführt ist und eine Möglichkeit der Handverstellung des Getriebes bietet. An das Gehäuse 2 anschließend ist eine Vergussmasse 8 angedeutet, in welche die Bedieneinheit 9 mit ihren stromführenden Teilen eingebettet ist. Mit 10 ist schließlich die Verschraubung für den Kabelanschluss bezeichnet.In FIG. 1 is an outer housing made of plastic in a side view, cut, shown, which consists of half-shells 1a and 1b. In the outer housing can be seen, uncut, an explosion-proof housing 2, which has housing parts 2a and 2b. This explosion-proof housing 2 is flanged to a housing 3, which is not designed explosion-proof. In this housing 3 is a transmission 3a, which is connected to a schematically indicated shaft 4 with the motor in the housing 2 in connection. The output from the housing 3, namely the drive shaft, is denoted by 5. This shaft is guided on both sides to the housing surface of the outer housing 1. On the housing 3, also shown only schematically, a spring return 6 is flanged, which in case of power failure, the drive shaft 5 in their starting position turns back. 7, the shaft of the manual adjustment is referred to, which is led out of the transmission also up to both side surfaces of the outer housing 1 and offers a possibility of manual adjustment of the transmission. To the housing 2 then a potting compound 8 is indicated, in which the operating unit 9 is embedded with their current-carrying parts. Finally, 10 denotes the screw connection for the cable connection.

Die Figur 2 stellt eine Ansicht in Richtung des Pfeiles A dar und zeigt die Verschraubungen 10 für Kabelanschlüsse sowie die Bedieneinheit 9, welche als Einzelheit bei Pfeil 11 dargestellt ist. Man erkennt einen Taster 11a, eine Lampe 11b und einen 10-Stellenschalter 11c. Mit dem Taster 11a kann man durch mehrmaliges Drücken verschiedene Funktionen aufrufen, welche durch die Lampe durch unterschiedliche Farben, Helligkeit oder Blinkfrequenz angezeigt werden können. Die eingestellte Funktion ist mit dem 10-Stellenschalter 11c in Stufen fein einstellbar. Durch die Kapselung dieser eigensicheren Bauteile in der Vergussmasse 8 ist die Explosionssicherheit entsprechend der Norm gewährleistet.The FIG. 2 represents a view in the direction of arrow A and shows the screw 10 for cable connections and the control unit 9, which is shown as a detail at arrow 11. One recognizes a button 11a, a lamp 11b and a 10-position switch 11c. By pressing the button 11a several functions can be called up, which can be indicated by the lamp by different colors, brightness or blinking frequency. The set function is finely adjustable with the 10-position switch 11c in stages. The encapsulation of these intrinsically safe components in the potting compound 8 ensures explosion safety in accordance with the standard.

In Figur 3 ist eine Draufsicht auf das Gehäuseteil 1b bei abgenommenem Deckel 2b dargestellt. Man sieht in dem Gehäuse, schematisch dargestellt, einen Motor 12, eine Leiterplatte 13, ebenfalls schematisch dargestellt, an deren Unterseite die elektronischen Bauteile und die Leiterbahnen angeordnet sind. Mit 14 ist ein Hilfsschalter für die Endstellungssignalisierung bezeichnet. Im übrigen sind gleiche Bauteile mit gleichen Bezugszeichen wie in Figur 1 bezeichnet.In FIG. 3 is a plan view of the housing part 1b with the cover 2b removed. It can be seen in the housing, shown schematically, a motor 12, a printed circuit board 13, also shown schematically, on the underside of the electronic components and the conductor tracks are arranged. At 14, an auxiliary switch for Endstellungssignalisierung is designated. Incidentally, the same components with the same reference numerals as in FIG. 1 designated.

In Figur 4 ist das explosionsgeschützte Gehäuse 2 mit seinen Gehäuseteilen 2a und 2b in zusammengebautem Zustand dargestellt, wobei die Anlageflächen mit einer Vergussmasse 15 vergossen sind.In FIG. 4 is the explosion-proof housing 2 shown with its housing parts 2a and 2b in the assembled state, wherein the contact surfaces are sealed with a potting compound 15.

In den Figuren 5 und 6 sind zwei mögliche Varianten der explosionsgeschützten Anordnung des Motors in dem Gehäuseteil 2a dargestellt. In Figur 5 ist der Motor 12 über eine Kupplung 16 mit einer Welle 17 verbunden. Diese Kupplung besteht aus einem sechskantig ausgebildeten Ende der Motorwelle, welche in eine entsprechende sechskantige Öffnung der Welle 17 eingreift. Die Welle 17 ist in zwei Lagern 18, die in das Gehäuseteil 2a eingepresst sind, gelagert.In the FIGS. 5 and 6 Two possible variants of the explosion-proof arrangement of the motor in the housing part 2a are shown. In FIG. 5 the motor 12 is connected via a coupling 16 with a shaft 17. This coupling consists of a hexagonal end of the motor shaft, which in a corresponding hexagonal opening of the shaft 17 engages. The shaft 17 is mounted in two bearings 18 which are pressed into the housing part 2a.

Die in Figur 6 dargestellte zweite Variante zeigt den Motor 12, der auf dem Gehäuseteil 2 angeordnet ist und einen Bund 19 aufweist, der in das Gehäuseteil 2a eingepresst ist und in welchem die Motorwelle 4 in zwei Lagern 20 und 21 gelagert ist. Das Lager 21 ist in den Bund 19 eingepresst oder eingeschraubt Das Lager 20 ist das übliche, im Motor bereits vorhandene Lager für die Welle 4. Diese zweite Variante ist bevorzugt wegen ihres einfacheren und daher billigeren Aufbaus gegenüber der Variante nach Figur 5.In the FIG. 6 illustrated second variant shows the motor 12 which is arranged on the housing part 2 and has a collar 19 which is pressed into the housing part 2a and in which the motor shaft 4 is mounted in two bearings 20 and 21. The bearing 21 is pressed or screwed into the collar 19. The bearing 20 is the usual, already existing in the engine bearing for the shaft 4. This second variant is preferred because of their simpler and therefore cheaper construction compared to the variant FIG. 5 ,

Die vorbeschriebene Anordnung des erfindungsgemäßen Antriebes stellt eine in der Explosionsschutztechnik bisher nicht gekannte Verkleinerung und Vereinfachung des Aufbaus dar. Durch die Box 1 ist ein vielseitig befestigbares und ansprechend gestaltbares Gehäuse gegeben, welches die vielseitige Anwendbarkeit des Antriebes ermöglicht.The above-described arrangement of the drive according to the invention represents a previously unknown in the explosion protection reduction and simplification of the structure. Through the box 1 is given a versatile attachable and attractively shaped housing, which allows the versatility of the drive.

Claims (11)

  1. Drive, particularly an actuating and variable-speed drive for flaps and fittings which can be located in an explosive environment, comprising control electronics and comprising functional elements such as a transmission and manipulators, the explosion-triggering assemblies, namely at least the motor (12) and control electronics (13) being arranged in a first explosion-proof casing (2) which is flanged to a second, non-explosion-proof casing (3) which contains the functional elements not to be protected, and an operating unit (9), constructed to be intrinsically safe in the sense of explosion protection, for parameterizing the motor (12) being arranged at the first explosion-proof casing (2), so that operation under voltage is possible during the operation and the two casings being located in a non-explosion-proof external casing, characterized in that the external casing (1) consists of two half shelves (1a, 1b), in that the drive shaft (5) exits from two opposite side faces of the external casing (1), as does the shaft (7) for the manual adjustment, and in that the openings (22) for the mounting means are arranged on the same side faces.
  2. Drive according to Claim 1, characterized in that the first casing (2) consists of casing parts (2a, 2b), in which a motor (12), control electronics (13) and operating unit (9) are arranged, and in that the two casing parts (2a, 2b) are joined to one another and are secured at the common supporting face in an explosion-proof manner by casting compound (15).
  3. Drive according to Claim 1 or 2, characterized in that the flaps and fittings are located in lines through which an explosive medium flows.
  4. Drive according to Claim 1, characterized in that the operating unit (9) is also used for parameterizing the control electronics (13).
  5. Drive according to Claim 1, characterized in that a spring return (6) is provided in the second casing (3) next to the transmission (3a).
  6. Drive according to Claim 1, characterized in that the operating unit (9) is constructed to be multifunctional.
  7. Drive according to Claim 7, characterized in that the operating unit (9) consists of a pushbutton (11a) a lamp (11b) and a multi-position switch (11c), wherein various functions can be called off by the pushbutton (11a) by multiple actuation and can be indicted by the lamp (11b) and wherein a fine adjustment is possible by means of the multi-position switch (11c).
  8. Drive according to Claim 1, characterized in that the external casing (1) consists of 2 plastic half shells (1a, 1b).
  9. Drive according to Claim 1, characterized in that the external casing (1) consists of 2 metal shells.
  10. Drive according to Claim 1, characterized in that the motor (12) is coupled via a coupling (16) to a shaft (17) supported in the first casing (2), which shaft is connected to the transmission (3a), and in that the explosion protection is guaranteed by the shaft-hub geometry in such a manner that gap width and gap length between shaft and hub are specified in a ratio to the diameter of the shaft in accordance with the standard for explosion protection.
  11. Drive according to Claim 1, characterized in that the motor (12) has a hollow collar (19) in which the motor shaft (4) is supported with its one bearing (21), the collar (19) being joined to the casing part (2a) of the first casing (2) in an explosion-proof manner, and in that the explosion protection of the motor shaft is guaranteed by the shaft-hub geometry, in such a manner that gap width and gap length between shaft and hub are specified in a ratio to the diameter of the shaft according to the standard for explosion protection.
EP04725622A 2003-04-15 2004-04-03 Drive, in particular actuating and variable-speed drive for flaps and fittings Expired - Lifetime EP1632013B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10317181A DE10317181B4 (en) 2003-04-15 2003-04-15 Drive, especially actuator and control drive, for flaps and valves
PCT/EP2004/003571 WO2004093295A1 (en) 2003-04-15 2004-04-03 Drive, in particular actuating and variable-speed drive for flaps and fittings

Publications (2)

Publication Number Publication Date
EP1632013A1 EP1632013A1 (en) 2006-03-08
EP1632013B1 true EP1632013B1 (en) 2011-06-15

Family

ID=33185659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04725622A Expired - Lifetime EP1632013B1 (en) 2003-04-15 2004-04-03 Drive, in particular actuating and variable-speed drive for flaps and fittings

Country Status (4)

Country Link
EP (1) EP1632013B1 (en)
AT (1) ATE513350T1 (en)
DE (1) DE10317181B4 (en)
WO (1) WO2004093295A1 (en)

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DE102007024421C5 (en) * 2007-05-25 2016-05-19 Cooper Crouse-Hinds Gmbh Housing for an electrical equipment
DE102012218463A1 (en) * 2012-10-10 2014-04-10 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt Method for manufacturing electronic module, involves penetrating fixing portion into not yet hardened casting portion, so that housing cover is fixed after hardening of casting portion to housing, over the casting portion
DE102012112502A1 (en) 2012-12-18 2014-06-18 Elodrive Gmbh Driving unit for use in potentially explosive environment in industrial plant in e.g. gas production, has electromotor energized for heating purpose based on detected temperature over control unit that comprises temperature sensor
DE102014225511B4 (en) * 2014-12-11 2022-04-28 Vitesco Technologies Germany Gmbh Housing for a motor vehicle control device, a method for its production and for testing the tightness of the housing
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DE102012112501A1 (en) * 2012-12-18 2014-06-18 Elodrive Gmbh Electromotor e.g. brushless direct current motor for use as servo motor in e.g. industrial applications, has motor cases with inwardly directed projection for forming seats to receptively receive stator, rotor hub and one end of shaft

Also Published As

Publication number Publication date
ATE513350T1 (en) 2011-07-15
DE10317181A1 (en) 2004-11-25
DE10317181B4 (en) 2006-05-24
EP1632013A1 (en) 2006-03-08
WO2004093295A1 (en) 2004-10-28

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